52001705521869 has 16 divisors (see below), whose sum is σ = 69677829207360. Its totient is φ = 34496918058240.

The previous prime is 52001705521841. The next prime is 52001705521879. The reversal of 52001705521869 is 96812550710025.

It is not a de Polignac number, because 52001705521869 - 2¹⁵ = 52001705489101 is a prime.

It is a super-2 number, since 2×52001705521869² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52001705521879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27238399 + ... + 29084940.

It is an arithmetic number, because the mean of its divisors is an integer number (4354864325460).

Almost surely, 2^{52001705521869} is an apocalyptic number.

It is an amenable number.

52001705521869 is a deficient number, since it is larger than the sum of its proper divisors (17676123685491).

52001705521869 is a wasteful number, since it uses less digits than its factorization.

52001705521869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56324860.

The product of its (nonzero) digits is 1512000, while the sum is 51.

The spelling of 52001705521869 in words is "fifty-two trillion, one billion, seven hundred five million, five hundred twenty-one thousand, eight hundred sixty-nine".